#78003D

Closest named color: Merlot (#730039). oklch(37.1% 0.15 359.8), rgb(120, 0, 61).

Aa

White text reads best on this color (11.25:1).

About this color

#78003D is a dark, vivid red. In OKLCH its lightness is 37%, its chroma 0.150 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.013 away. White text reads best on it, at 11.25:1.

Hue familyReds
Lightnessdark (37%)
Chromavivid (0.150)
Temperaturewarm
Nearest nameMerlot (#730039)
Black text1.86:1
White text11.25:1

Values

HEX#78003D
RGBrgb(120, 0, 61)
HSLhsl(330, 100%, 24%)
OKLCHoklch(37.1% 0.15 359.8)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

PairWCAG 2ResultAPCAAPCA guidance
White text on #78003D 11.25:1 AAA Lc -97.9 Preferred for body text
Black text on #78003D 1.86:1 Fails Lc 10.1 Not readable
#78003D text on white 11.25:1 AAA Lc 93.8 Preferred for body text
#78003D text on black 1.86:1 Fails Lc -8.7 Not readable

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.

  1. Step 50

    50

    #FFF1F5

    oklch(97% 0.016 358)

  2. Step 100

    100

    #FEE1E9

    oklch(93.6% 0.033 359.2)

  3. Step 200

    200

    #FDC9D7

    oklch(88.5% 0.061 0.5)

  4. Step 300

    300

    #FDA1BE

    oklch(80.9% 0.114 359.6)

  5. Step 400

    400

    #F6689C

    oklch(70.7% 0.18 359.9)

  6. Step 500

    500

    #ED2E84

    oklch(63.1% 0.23 359.8)

  7. Step 600

    600

    #D0006E

    oklch(55.6% 0.225 359.9)

  8. Step 700

    700

    #B0005C

    oklch(49% 0.199 360)

  9. Step 800

    800

    #92004B

    oklch(42.7% 0.173 0.1)

  10. Step 900

    900 (this color)

    #78003D

    oklch(37.1% 0.15 359.8)

  11. Step 950

    950

    #480925

    oklch(27% 0.096 359.4)

Export this scale for Tailwind in the Tailwind colors tool

#78003D with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#262D3E0.172
Deuteranopia (no green cones)#44423A0.153
Tritanopia (no blue cones)#8300210.052
Achromatopsia (no color)#3B3B3B0.152

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

Complementary

The opposite hue (180°).

  • #78003D

    #78003D

    oklch(37.1% 0.15 359.8)

  • #004B41

    #004B41

    oklch(37% 0.067 180)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #78003D

    #78003D

    oklch(37.1% 0.15 359.8)

  • #681365

    #681365

    oklch(37.2% 0.15 329.7)

  • #7C0400

    #7C0400

    oklch(37% 0.149 29.8)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #78003D

    #78003D

    oklch(37.1% 0.15 359.8)

  • #004E20

    #004E20

    oklch(37.1% 0.102 150)

  • #004953

    #004953

    oklch(37.2% 0.064 210.3)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #78003D

    #78003D

    oklch(37.1% 0.15 359.8)

  • #3B4600

    #3B4600

    oklch(37.1% 0.088 119.4)

  • #004568

    #004568

    oklch(37.2% 0.085 239.7)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #78003D

    #78003D

    oklch(37.1% 0.15 359.8)

  • #503D00

    #503D00

    oklch(37% 0.076 88.8)

  • #004B41

    #004B41

    oklch(37% 0.067 180)

  • #23338E

    #23338E

    oklch(37.1% 0.151 269.6)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #78003D, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #78003D in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.